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Long-term periodic measurements of content of radioactive gas – radon Rn-222 in tap water for different districts of Tbilisi city depending on time (during the period from January, 2009 till December, 2009) were carried out. It is shown, that according to the level of radon content in tap water the investigated districts can be divided conditionally into 2 groups: with rather big radon content – more than 1 Bq L-1 (ranged in the interval 2.15 ± 1.17 Bq L-1, districts Vake, Saburtalo, Ortachala), and districts...

There are presented results of periodic measurements of radioactive gas - radon content in sea, river and drinking water in resort zone Ureki-Shekvetili at the Black Sea coast of Georgia during the period from September, 2008 till October, 2009. It is shown, that the level of radon content ranges in interval 0.12 – 0.44 Bq/L in sea water, 0.15 - 0.58 Bq/L and 0.13 – 0.59 Bq/L in river water for river Natanebi and river Supsa, accordingly, 7.9 – 14.0 Bq/L and 1.19 – 4.35 Bq/L in drinking tap and artesian wa...